74365560 has 128 divisors (see below), whose sum is σ = 254721600. Its totient is φ = 19284480.

The previous prime is 74365553. The next prime is 74365579. The reversal of 74365560 is 6556347.

74365560 is a `hidden beast` number, since 74 + 36 + 556 + 0 = 666.

It is a super-2 number, since 2×74365560² = 11060473028227200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39030 + ... + 40890.

Almost surely, 2^74365560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74365560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127360800).

74365560 is an abundant number, since it is smaller than the sum of its proper divisors (180356040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74365560 is a wasteful number, since it uses less digits than its factorization.

74365560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918 (or 1908 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 74365560 is about 8623.5468341049. The cubic root of 74365560 is about 420.5238361806.

It can be divided in two parts, 7436 and 5560, that added together give a square (12996 = 114²).

The spelling of 74365560 in words is "seventy-four million, three hundred sixty-five thousand, five hundred sixty".